摘要:
A method for controlling a partially unsynchronized manual transmission, which realizes the increase of a rotational speed of a transmission part to be synchronized during a gear change procedure by connecting one element of the transmission, via a shiftable clutch, to a drive motor and by making available to this drive motor the required rotational speed as well as the necessary torque at its output shaft. It is also provided that when the rotational speed and/or the torque made available by the drive motor is not sufficient to ensure the synchronization of the manual transmission within a fixed time period, a shifting strategy is pursued, which prevents an unintentional holding of the manual transmission in its neutral position or idle position.
摘要:
A method for controlling a partially unsynchronized manual transmission, which realizes the increase of a rotational speed of a transmission part to be synchronized during a gear change procedure by connecting one element of the transmission, via a shiftable clutch, to a drive motor and by making available to this drive motor the required rotational speed as well as the necessary torque at its output shaft. It is also provided that when the rotational speed and/or the torque made available by the drive motor is not sufficient to ensure the synchronization of the manual transmission within a fixed time period, a shifting strategy is pursued, which prevents an unintentional holding of the manual transmission in its neutral position or idle position.
摘要:
The invention related to a method for engaging power take-offs (28) in automated or partially automated transmissions (6) of commercial vehicles. A signal from the driver corresponding to a wish to engage the power take-off (28) is converted in a control device (34) into a signal for opening an automated clutch (4) between a prime mover (2) and the transmission (6) of the commercial vehicle. Once a predetermined minimum number of revolutions of the input shaft (10) of the transmission (6) is reached, a shifting device (26) is controlled for connecting the power take-off (28) with one transmission shaft (16, 42) that drives the power take-off (28) in order to obtain a closing of said shifting device (26, 52). The clutch (4) is again closed to prevent the teeth (50, 53) of the shifting device (26, 52) from remaining in front of each other. Sensors (32, 36, 40) determine whether the shifting device (26, 52) of the power take-off (28) has fully shifted, whether there is in the power take-off (28) a difference in the number of revolutions between the driving transmission shaft (16, 42) and the driven shaft (30, 72), or whether in the clutch (4) a defined adjustment travel has been exceeded.